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| author | Jean Delvare <jdelvare@suse.de> | 2009-04-01 13:11:29 -0500 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2009-04-03 09:23:14 -0500 |
| commit | fd6e1c14b73dbab89cb76af895d5612e4a8b5522 (patch) | |
| tree | d1a11b7f5e46881dd01c6203f31cc36a2e266151 | |
| parent | 5b2639d59afe0a30e1b955b23c52ee9099888058 (diff) | |
| download | op-kernel-dev-fd6e1c14b73dbab89cb76af895d5612e4a8b5522.zip op-kernel-dev-fd6e1c14b73dbab89cb76af895d5612e4a8b5522.tar.gz | |
[SCSI] libiscsi: fix iscsi pool error path
Le lundi 30 mars 2009, Chris Wright a écrit :
> q->queue could be ERR_PTR(-ENOMEM) which will break unwinding
> on error. Make iscsi_pool_free more defensive.
>
Making the freeing of q->queue dependent on q->pool being set looks
really weird (although it is correct at the moment. But this seems
to be fixable in a much simpler way.
With the benefit that only the error case is slowed down. In both
cases we have a problem if q->queue contains an error value but it's
not -ENOMEM. Apparently this can't happen today, but it doesn't feel
right to assume this will always be true. Maybe it's the right time
to fix this as well.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| -rw-r--r-- | drivers/scsi/libiscsi.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index dfaa8ad..6896283 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -1999,8 +1999,10 @@ iscsi_pool_init(struct iscsi_pool *q, int max, void ***items, int item_size) q->queue = kfifo_init((void*)q->pool, max * sizeof(void*), GFP_KERNEL, NULL); - if (q->queue == ERR_PTR(-ENOMEM)) + if (IS_ERR(q->queue)) { + q->queue = NULL; goto enomem; + } for (i = 0; i < max; i++) { q->pool[i] = kzalloc(item_size, GFP_KERNEL); |
